Evaluation of growth and reproduction as indicators of soil metal toxicity to the Collembolan, Sinella curviseta
Evaluation of growth and reproduction as indicators of soil metal toxicity to the Collembolan, Sinella curviseta作者机构：Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai China Department of Terrestrial Ecology National Environmental Research Institute University of Aarhus Vejlsevej 25 DK-8600 Silkeborg Denmark Soil and Environment Bioremediation Research Centre Institute of Soil Sciences Chinese Academy of Sciences Nanjing China
出 版 物：《Insect Science》 (昆虫科学（英文版）)
年 卷 期：2009年第16卷第1期
页 面：57-63页
核心收录：
学科分类：0710[理学-生物学] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 09[农学] 0903[农学-农业资源与环境] 0904[农学-植物保护] 0901[农学-作物学] 0713[理学-生态学]
主 题：Collembolan copper growth lead reproduction Sinella curviseta soil pollution toxicity testing zinc
摘 要：Laboratory studies evaluated the sensitivity of Sinella curviseta Brook （Collembola： Entomobryidae） to selected heavy metals （Cu, Pb and Zn）. Survival, reproduction and growth of S. curviseta were determined in a 4-week exposure test in an agricultural soil amended with metals to concentrations of 100, 200, 400, 800, 1 600 and 3 200 mg/kg. Results showed reduction in adult survival and reproductive failure at the highest concentrations （3 200 mg/kg） of Cu and Zn. EC50reproduction values for Cu and Zn were approximately 442 and 2 760 mg/kg, respectively. Application of Pb at all levels resulted in large numbers of progeny and no significant mortality compared to controls. Adult growth rate decreased for all metal treatments compared to the controls, suggesting that metals affect S. curviseta metabolism and result in slower growth. We showed that reproduction is a slightly more sensitive parameter than growth. Since a growth test needs fewer juveniles and takes less time than a reproduction test, we conclude that the two parameters are complementary and could be used for a better ecotoxicological evaluation of contaminant levels. However, relative growth and reproduction sensitivities should be tested with more chemicals before a growth test is accepted as a faster sublethal test than a reproduction test.
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